The 46-539 is a circular filter with a diameter of 24 mm, a thickness of 2 mm, and a red color. This filter is sourced from Edmund Optics and is available for purchase on their website. The filter is designed for use with a thread size of M22.5 x 0.5, making it compatible with a variety of optical systems.
The filter is made from UVFS Mal-1965, a material known for its optical properties. It has a cut-on wavelength of 600 nm and a cut-off wavelength of 0 nm, which means it allows light within the 400-700 nm range to pass through. This makes it suitable for applications that require the transmission of red light.
The filter features a thin lens shape and is coated on both the front and back with EDm 46-539. This coating likely enhances the filter's performance by reducing reflections and increasing transmission. The filter is currently in stock, according to the vendor's website.